The first alarm clock could only ring at 4 a.m.
120
The blueprint for a floating city has just been approved by the largest port construction and design company in China. It's entirely self-sustainable, and extends underwater.
2
If a car is travelling at 55 miles per hour it will travel 56 feet before the driver can shift his foot from the accelerator to the brake.
25
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
Scientists in China have built a prototype high-speed maglev train that is theoretically capable of reaching speeds of up to 1,800 mph (2,900 km/h).
1
First four countries to have television: England, the U.S., the U.S.S.R., and Brazil.
47
